Inorganic Chemistry Practice Test

This practice test will test your knowledge of inorganic chemistry, its fundamentals, inorganic reactions and characterization of inorganic compounds. It is consist of 35 multiple-choice questions representing a fairly wide range of difficulty. Choose the best answer from the answer choices. To proceed to the next question, just click or tap the 'continue' button. Good luck!

Which of the following electron configurations represents the electron configuration for a magnesium cation...Mg2+?

If the temperature of a reaction is increased by 20°C the reaction rate will be...

20 times as fast.

2 times as fast.

Unchanged because the reaction rate is not dependent on the temperature.

4 times as fast.

The half-life of francium-212 is 19 minutes. How many minutes will it take for 1 gram of this isotope to decay to 0.125 grams?

9.5 minutes

38 minutes

57 minutes

4.75 minutes

Fluorine atoms tend to_____when they form chemical compounds with metals.

lose electrons

gain electrons

neither lose nor gain electrons...they usually share electrons equally with metals.

Fluorine atoms do not form compounds with other atoms...fluorine is an inert gas.

What happens when a fluorine atom becomes a fluoride ion in a chemical reaction?

A proton is gained by the nucleus.

An electron is lost from one of the outer orbitals.

A proton is lost by the nucleus.

An electron is lost from one of the outer orbitals.

Which of the following is the correct electron-dot formula for carbon dioxide?

The following reaction coordinate diagram represents...

A reaction that is neither endothermic nor exothermic.

An exothermic reaction.

A reaction in which a catalyst is used.

An endothermic reaction.

When two ionic compounds are dissolved in water, a double replacement reaction can...

never occur since all ions in water are "spectator ions".

occur if two of the ions form an insoluble ionic compound, which precipitates out of solution.

occur if the ions react to form a gas, which bubbles out of the solution.

occur only if the ions form covalent bonds with each other.

What would be the volume in liters of 640g of oil if the density of the oil is 0.8 g/mL?

800 liters

512 liters

0.8 liter

0.5 liters

Which of the following correctly represents the balanced chemical reaction between aluminum and sulfur?

When the following reaction equation is properly balanced, the number of moles of O2 will be...

38 moles

19 moles

13 moles

1.5 moles

The identity of an element is determined by...

the number of its neutrons.

the number of its protons.

its atomic mass

the number of its electrons.

How many moles of CO2 are present in 220mg?

5 moles

5000 moles

10 moles

0.005 mole

Which of the following is the correct electron-dot formula for water?

If additional calcium phosphate is added to the above reaction mixture, what will happen to the overall reaction?

More of the reactants will have to react in order to compensate for the increase in the amount of one of the products of the reaction.

Less of the reactants will react in order to compensate for the increase in the amount of one of the products of the reaction.

The reaction will occur at a faster rate.

There will be no change in the overall reaction.

If the absolute temperature of a gas is doubled and the pressure of the gas is halved, how will the volume change?

It will increase by two times its original value.

It will decrease to one fourth of its original value.

It will stay the same as its original value.

It will increase by four times its original value.

If the concentration of a reactant is tripled, the reaction rate will...

remain the same because the reaction rate does not depend on the concentration of the reactants.

be 30 times as fast.

be 4 times as fast.

be at least 3 times as fast.

How many valence electrons does an oxygen atom have?

Which of the following is the correct name for NaHCO3?

sodium hydrogen carbonate

sodium acetate

nitrogen hydrogen carbonate

sodium hydrogen carbon trioxide

How many grams of NaOH are needed to make 100 milliliters of a 0.2 molar solution of NaOH?

800 grams

0.02 grams

0.8 grams

20 grams

What is the major attraction between water molecules in the solid physical state?

dipole-dipole interactions

hydrogen-bonds

electrostatic interactions between charged atoms

physical entanglement of the molecules

The probability area that best represents the shape of an atomic 3p orbital is...

In a single replacement reaction, why will one metal replace another metal in an ionic compound?

The metal will replace another metal if it can lose electrons more readily than the other metal.

The metal will replace another metal if it can gain electrons more readily than the other metal.

The metal will replace another metal if it has a smaller mass and thus is able to hit the ionic compound with a higher velocity and thus more energy.

The metal will replace another metal if it has a larger mass and thus is able to hit the ionic compound with more energy.

Which of the following compounds should have the highest boiling point?

CH4

NH3

H2O

Which of the bonds, shown by the dash, has the greatest polarity?

H-Cl

H-OH

H-NH2

H-SH

If both the volume and the pressure of a gas are doubled, how will the temperature change?

It will increase by two times its original value.

It will increase by four times its original value.

It will decrease to one fourth of its original value.

It will stay the same as its original value.

How many milliliters of 2 M NaCl solution are required to make 1 liter of 0.4 M NaCl solution?

5,000 mL

0.2 mL

800 mL

200 mL

The atom formed by the beta decay of carbon-14 is...

beryllium-10

boron-14

nitrogen-14

oxygen-18

The pressure of a gas will____when the volume is decreased and will_____when the absolute temperature is decreased.

increase...increase

decrease...increase

decrease...decrease

increase...decrease

How many calories are needed to raise the temperature of 10 grams of water from -5°C to 15°C? Assume that the water is cooled below the freezing point but has not frozen.

2 calories

100 calories

0.5 calories

200 calories

When the following reaction equation is properly balanced, the number of moles of O2 will be...